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TUsbDeviceQualifierDescriptor Class Reference

class TUsbDeviceQualifierDescriptor : public TUsbGenericDescriptor

Device Qualifier descriptor.

See section 9.6.2 of the USB 2.0 specification.

Intended to be available to 3rd parties later

Inherits from

TUsbDeviceQualifierDescriptor
- TUsbGenericDescriptor

Public Member Functions
	TUsbDeviceQualifierDescriptor ()
IMPORT_C TUsbDeviceQualifierDescriptor *	Cast ( TUsbGenericDescriptor *)
IMPORT_C TUint8	DeviceClass ()
IMPORT_C TUint8	DeviceProtocol ()
IMPORT_C TUint8	DeviceSubClass ()
TBool	IsParent ( TUsbGenericDescriptor &)
TBool	IsPeer ( TUsbGenericDescriptor &)
IMPORT_C TUint8	MaxPacketSize0 ()
IMPORT_C TUint8	NumConfigurations ()
TUsbDeviceQualifierDescriptor *	ParseL ( TPtrC8 &, TUsbGenericDescriptor *)
IMPORT_C TUint8	Reserved ()
IMPORT_C TUint16	USBBcd ()

Inherited Functions
	TUsbGenericDescriptor::DestroyTree()
	TUsbGenericDescriptor::IsChild(TUsbGenericDescriptor &)
	TUsbGenericDescriptor::TUint16At(TInt)const
	TUsbGenericDescriptor::TUint32At(TInt)const
	TUsbGenericDescriptor::TUint8At(TInt)const
	TUsbGenericDescriptor::TUsbGenericDescriptor()
	TUsbGenericDescriptor::operator TCleanupItem()
	TUsbGenericDescriptor::operator=(const TUsbGenericDescriptor &)

Public Member Enumerations
enum	TFieldOffsets { EbcdUSB = 2, EbDeviceClass = 4, EbDeviceSubClass = 5, EbDeviceProtocol = 6, EbMaxPacketSize0 = 7, EbNumConfigurations = 8, EbReserved = 9 }

Inherited Enumerations
	TUsbGenericDescriptor:TUsbGenericDescriptorFlags

Public Attributes
const TInt	KSizeInOctets

Inherited Attributes
	TUsbGenericDescriptor::KbDescriptorTypeOffset
	TUsbGenericDescriptor::KbLengthOffset
	TUsbGenericDescriptor::iBlob
	TUsbGenericDescriptor::iFirstChild
	TUsbGenericDescriptor::iNextPeer
	TUsbGenericDescriptor::iParent
	TUsbGenericDescriptor::iRecognisedAndParsed
	TUsbGenericDescriptor::ibDescriptorType
	TUsbGenericDescriptor::ibLength

Constructor & Destructor Documentation

TUsbDeviceQualifierDescriptor()

IMPORT_C

TUsbDeviceQualifierDescriptor

(

)

Member Functions Documentation

Cast(TUsbGenericDescriptor *)

IMPORT_C TUsbDeviceQualifierDescriptor *

Cast

(

TUsbGenericDescriptor *

aOriginal

)

[static]

Parameters

TUsbGenericDescriptor * aOriginal

DeviceClass()

IMPORT_C TUint8

DeviceClass

(

)

const

DeviceProtocol()

IMPORT_C TUint8

DeviceProtocol

(

)

const

DeviceSubClass()

IMPORT_C TUint8

DeviceSubClass

(

)

const

IsParent(TUsbGenericDescriptor &)

TBool

IsParent

(

TUsbGenericDescriptor &

aPotentialParent

)

[virtual]

Parameters

TUsbGenericDescriptor & aPotentialParent

IsPeer(TUsbGenericDescriptor &)

TBool

IsPeer

(

TUsbGenericDescriptor &

aPotentialPeer

)

[virtual]

Parameters

TUsbGenericDescriptor & aPotentialPeer

MaxPacketSize0()

IMPORT_C TUint8

MaxPacketSize0

(

)

const

NumConfigurations()

IMPORT_C TUint8

NumConfigurations

(

)

const

ParseL(TPtrC8 &, TUsbGenericDescriptor *)

TUsbDeviceQualifierDescriptor *	ParseL	(	TPtrC8 &	aUsbDes,
			TUsbGenericDescriptor *	aPreviousDesc
		)	[static]

The parsing routine for device qualifier descriptors.

Parameters

TPtrC8 & aUsbDes
TUsbGenericDescriptor * aPreviousDesc

Reserved()

IMPORT_C TUint8

Reserved

(

)

const

USBBcd()

IMPORT_C TUint16

USBBcd

(

)

const

Member Enumerations Documentation

Enum TFieldOffsets

Enumerators

EbcdUSB = 2
EbDeviceClass = 4
EbDeviceSubClass = 5
EbDeviceProtocol = 6
EbMaxPacketSize0 = 7
EbNumConfigurations = 8
EbReserved = 9

Member Data Documentation

const TInt KSizeInOctets

const TInt

KSizeInOctets

[static]